Grain-separator.



- Invent n Attorneys 2 SHEETS-SHEET 1.

PATENTED DEC. 12, 1905.

E. HORAZDOVSKY.

GRAIN SEPARATOR.

APPLIOATION FILED JULY 25.- 1905.

PATENTED DEC. 12, 1905.

E HORAZDOVSKY.

GRAI

APPLICATION FILED JULY 25 N SEPARATOR.

2 SHEBTSSHEET 2.

615m 0155mm 5% lnven or,

Witnesses I I 7 77 2M Attorneys.

UNITED STATES PATENT OFFICE.

Specification of Letters Patent.-

Patented Dec. 12, 1905.

Application filed July 25, 1905. Serial No. 271,206.

lb all whom, it may concern:

Be it known that I, EDWARD HORAZDOV- SKY, a citizen of the United States, residing at Montgomery, in the county of Lesueur and State of Minnesota, have invented a new and useful Grain-Separator, of which the following is a specification.

This invention relates to grain separators and cleaners; and it has for its objects to sim In the accompanying drawings has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the pre cise structural details therein exhibited, but that changes, alterations, and modifications within the scope of the invention may be made when desired.

In said drawings, Figure 1 is a side elevation, partly in section, of a grain-separator or fanning mill constructed in accordance with the principles of the invention. Fig. 2 is a longitudinal vertical sectional view. Fig. 3 is a vertical sectional detail view. Fig. 4 is a perspective detail view of one of the screen-frames inverted. Fig. 5 is a sectional detail view taken on the plane indicated by the line 5 5 in Fig. 1.

Corresponding parts in the several figures are indicated throughout by similar characters of reference.

The frame of the improved separator or fanning-mill, which is of ordinary construction, is designated F, and it includes a casing C for a fan G, which latter is mounted upon atransverse shaft 1, bearings for which are provided in the sides of the casing. The latter supports a hopper 2, having a feed-opening 3, beneath which is supported a slide 4 operable by a lever 5 to regulate the size of the feed-opening.

The shaking-shoe 6 is supported by means of straps 7, the upper ends of which are hingedly connected with the frame so as to ermit the shoe to vibrate laterally. The ower ends of the front straps 7 are connected with the frame by means of links 8, whereby longitudinal vibration is prevented, it having been found that longitudinal vibration is nonessential to the successful operation of the machine, which latter, when the shoe is permitted to vibrate longitudinally, is unnecessarily racked and strained. The shoe is provided in its upper part and in rear of the portion of the fan-casing with a transverse bar 9, having a groove 10 for the reception of the upper portion of a screen-frame 1 1, containing any desired number of sieves or screens 12. The lower edge of said screen-frame is supported upon the upper edge of aninclined board 13, constituting the bottom of the rear portion of the shoe. Between the sides of the latter, which are spaced apart by a rod 14, are mounted a pair of brackets 15, having ears 16 hingedly engaging the rod 14 upon which said brackets may turn to the position indicated in dotted lines in Fig. 2 of the drawings. This is in order to admit of the convenient insertion and removal of the screenframe, which latter is retained securely in position by means of the bracket, members when they are positioned as shown in full lines in Figs. 1 and 2 of the drawings. Fastening means, such as hooks and staples 17 18, may be used to retain the bracket members in the position shown. The said bracket members support an inclined trough or chute 19, discharging at one side of the machine and disposing of the overtail from the screens 12.

The screen-frame 11 is provided upon its under edges with cleats 20, having slots 21 in which a deflecting-board 22. is adjust'ably mounted, said board being parallel with the. sieves 12.

The shoe is provided in its lower portion with downwardly and forwardly inclined guides 23, between which is movably supported a screen 24. The upper face of the latter is protected from the impact of the blast from the fan by means of a curved deflecting-shield 25, the lower edge of which is but slightly spaced from the upper surface of the screen, While the upper edge of said shield is sufliciently elevated to prevent it from interfering with material passing through the screens A guide-board 26 extends from a point in the neighborhood of the tail end of the lowermost screen 12 in a downward and forward direction to overlap the screen 24.

At the lower edge of the inclined bottom board 13 is supported an inclined chute or conductor 27, which serves to convey mate-, rial to 'an elevator 28, whereby-it is returned to the hopper 2 of the machine. The elevator, which may be of any well known and approved construction, is driven from the fan shaft 1 by means of a link belt 29, connecting a sprocket-wheel 30 upon the fanshaft with a sprocket-wheel 31 upon the lower elevator-shaft. The fan may be driven by a spur-wheel 32, journaled upon the frame of t e machine and having a crank 33, said spur-wheel meshing with a pinion 34 upon the fan shaft. Pivotally connected with said pinion is a pitman 35, the opposite end of which is connected with one arm of a bellcrank lever 36, the other arm of which is connected by a link 37- with the proximate side of the shaking-shoe to which the desired laterally-vibratory movement is thus imparted.

In lieu of the screen-frame 11 (shown in Fig. 2 of the drawings) another frame, as 11,

containing but two comparatively coarse screens may be substituted, as will be seen in Fig. 3. This screen, which is intended to be utilized when coarse grain, corn, beans, or the like is to be cleansed, is of coarser mesh than the screens 12, and in its use the cleats 20 and the adjustable gage-board 22 may be dispensed with.

The operation and advantages of this improved grain-separator will be readily under stood from the foregoing description, taken in connection with the drawings hereto an neXed. The gage-board 22 may be adjusted at various distances from the discharge ends of the screens 12, according to the condition of the grain that is to be operated upon. The air which is set in motion by the fan G will pass upwardly and rearwardly through the screens 12, carrying off the chaff, dust, and light impurities. The tailings passing over the screens 12 will be caught in the trough 19. The pure grain which passes through the upper portions of the screens 12 will drop onto the screen 24, where it is freed from cockle and other small seeds, the highest grade of grain tailing over the screen 24. Grain which is not perfectly separated will be intercepted by the gage-board 22 and will pass through the lower end of the bottom screen 12, onto the inclined bottom board 13 and thence over the conveyer 27 to the elevator, whereby it is returned to the ho per. The guide-board 26 intercepts the ghgrade grain passing through the screens 12 and conducts the same to the screen 24, thus preventing any portion of the high-grade grain from being returned to the hopper.

Having thus described the invention, what is claimed is 1. A shaking-shoe having a grooved crossbar and provided with hinged brackets supporting a tailings-trough, in combination with a screen-frame supported at its upper edge in said cross-bar and engaged at its lower edge by said brackets.

2. A shaking-shoe having a grooved crossbar near its upper front portion and an inclined bottom board at its rear portion, and brackets hingedly connected with said shoe and a tailings-trough supported by said brackets, in combination with a screenframe supported at its upper edge in the grooved cross-bar and at its lower edge upon the upper edge of the bottom board; the lower edge of said screen-frame being operatively engaged by the hinged brackets.

3. In a grainseparator, a shaking-shoe, a screen-frame supported therein, a gage-plate connected adjustably with said screen-frame, an inclined bottom board in the shoe, a guideboard between the bottom board and the gage-plate, a cockle-screen disposed to receive material guided thereto by said board, and a curved shield above said cockle-screen to protect the latter from the impact of blast from the fan which is a part of the machine.

In testimony that I claim the foregoing as my own I have hereto afi iXed my signature in the presence of two witnesses.

EDDIE HORAZDOVSKY.

Vitnesses:

JOHN HUMBER, F. W. RYNDA. 

